I have two 10-meter masts to support a 40-meter inverted L. I have a decent enough sized yard that I have a few options for counterpoise/ground/radial.
I could run 1/4 wave radials in several directions along the ground/just below the surface and feed the inverted L just a few feet off the ground, giving me a longer vertical section.
Another option I'm considering is feeding the inverted L at a height of about 10 feet, giving me a 20+ foot vertical section, along with elevated wires at about 10 feet to give me a handful of elevated radials.
Or, I could use a folded counterpoise, which, I admit, I am not very familiar with.
I've heard that a few elevated radials is a better, or at least as good an option as many ground radials, and that seems to be the easier option too, and so I'm leaning toward that option.